OPERATION
In neutral (unpiloted), the PD12-35 allows flow from 2 to 3. The spring bias chamber
is internally vented to 3. On remote pilot signal at 1, the valve shifts to block flow
between 2 and 3.Note: Back pressure at 3 will increase the pilot pressure required at 1 to shift, at a
ratio of 1:1. Consult factory for applications where bi-directional flow is required when
the valve is in the normal or spring-offset position.

FEATURES
• Hardened spool and cage for long life.
• Industry common cavity.